US Bridges

W South ST over Middle Raccoon River

Poor

Guthrie County, Iowa · 079300504 · Structure no. 000000000501890

Built
1965
60 years old
Condition
Poor
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
197 ft
3 main spans
Daily traffic
358
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

W South ST over Middle Raccoon River is a prestressed concrete stringer/multi-beam or girder carrying W South ST over Middle Raccoon River in Guthrie County, Iowa. It was built in 1965, so it is 60 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 358 vehicles a day, projected to reach 358 by 2043. The structure is 197 ft (60 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesW South ST
CrossesMiddle Raccoon River
Location079300504
RouteCity Street 0
StateIowa
Coordinates41.68712, -94.37167
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.7 US tons
Inventory rating27.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length197 ft (60 m)
Longest span82 ft (25 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic358 (2022)
Projected traffic358 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$503,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was W South ST over Middle Raccoon River built?

It was built in 1965, making it 60 years old in 2025.

What condition is W South ST over Middle Raccoon River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.

How much traffic does W South ST over Middle Raccoon River carry?

About 358 vehicles per day (2022 count).

How long is W South ST over Middle Raccoon River?

The structure is 197 ft (60 m) long with a longest span of 82 ft (25 m) and a deck 30 ft wide.

Who owns W South ST over Middle Raccoon River?

It is owned by the City or Municipal Highway Agency.